If you’ve so far withstood the temptation to install a smart speaker in your home, worried about the potential privacy pitfalls and a bit embarrassed about the notion of chatting aimlessly to an inanimate object, brace yourselves. This Christmas, the world’s biggest tech giants, including Amazon, Google and Facebook, are making another bid for your living room, announcing a range of new devices that resemble tablets you can talk to. Facebook’s is called Portal, Google’s the Home Hub, and (...)